I have seen this before in phones and other GPS units. It's usually is a software problem in interpreting GPS sat signals. It can also happen as part of ghosting when a particular satellite signal is received as reflection and throws off the coordinates. Sometimes happens in urban canyons, which is a canyon caused tall buildings blocking signals.
Push them for a fix as it ill throw off everything.
2013 535i Space Grey, Biege, M-SPort, Premium, Tech, Cold Weather, Luxury Seating, PDC, 6MT ED-10/11/2012 - PCD Redelivery-12/14/12